Why can't i seem to fill a vacancy?

[Gary Dale McKee]

Alright guys, I could use some help, words of encouragement.  Two months ago I bought my first investment property and was super excited to finally be taking my first step towards building my wealth.  I looked for about four months and found the duplex I ended up buying.  I liked the location and the property is super nice, fitting my criteria.  I now believe that I over paid for the property by about 20K which, has put me in a not so perfect position.  The tenant I do have says she may have to move out at the end of here lease which ends at the first of the year and leave me with 100% vacancy, "SCARY".   For the first month I had a steady flow of calls and only had one person interested enough to see the property.  I have blasted the property on social media, craigslist and soon to run and add in the paper.  I started asking the people calling where they had found out about the rental and 90% seen my for rent sign.   Is there something I am not doing correctly?  Or am I just trying to hit the panic button to quickly?  Any words of wisdom from you guys would be greatly appreciated.